104 lines
4.1 KiB
Makefile
104 lines
4.1 KiB
Makefile
#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
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#───vi: set et ft=make ts=8 tw=8 fenc=utf-8 :vi───────────────────────┘
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#
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# SYNOPSIS
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#
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# Your package static library build config
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#
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# DESCRIPTION
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#
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# Your library doesn't have a main() function and can be compromised
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# of sources written in multiple languages.
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#
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# WARNING
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#
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# This library (examples/package/lib/) comes earlier in the
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# topological order of things than its parent (examples/package/)
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# because the parent package depends on the subpackage. Therefore,
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# this package needs to be written earlier in the Makefile includes.
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#
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# EXAMPLE
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#
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# make o//examples/package/lib # build library w/ sanity checks
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# at t o//examples/package/lib/lib.a
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#
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# AUTHORS
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#
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# %AUTHOR%
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PKGS += EXAMPLES_PACKAGE_LIB
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# Declares build package.
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# Other packages may list this variable in their deps list.
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# Please note package relationships aren't allowed to be cyclic.
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EXAMPLES_PACKAGE_LIB = \
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$(EXAMPLES_PACKAGE_LIB_A_DEPS) \
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$(EXAMPLES_PACKAGE_LIB_A)
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# While build configs might seem somewhat complicated but rest
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# assured they're mostly maintainence free, thanks to wildcard
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EXAMPLES_PACKAGE_LIB_A_FILES := $(wildcard examples/package/lib/*)
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EXAMPLES_PACKAGE_LIB_ARTIFACTS += EXAMPLES_PACKAGE_LIB_A
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EXAMPLES_PACKAGE_LIB_A_HDRS = $(filter %.h,$(EXAMPLES_PACKAGE_LIB_A_FILES))
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EXAMPLES_PACKAGE_LIB_A = o/$(MODE)/examples/package/lib/lib.a
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# Define sets of source files without needing further iops.
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EXAMPLES_PACKAGE_LIB_A_SRCS_S = \
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$(filter %.S,$(EXAMPLES_PACKAGE_LIB_A_FILES))
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EXAMPLES_PACKAGE_LIB_A_SRCS_C = \
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$(filter %.c,$(EXAMPLES_PACKAGE_LIB_A_FILES))
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EXAMPLES_PACKAGE_LIB_A_SRCS = \
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$(EXAMPLES_PACKAGE_LIB_A_SRCS_S) \
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$(EXAMPLES_PACKAGE_LIB_A_SRCS_C)
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# Change suffixes of different languages extensions into object names.
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EXAMPLES_PACKAGE_LIB_A_OBJS = \
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$(EXAMPLES_PACKAGE_LIB_A_SRCS_S:%.S=o/$(MODE)/%.o) \
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$(EXAMPLES_PACKAGE_LIB_A_SRCS_C:%.c=o/$(MODE)/%.o) \
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$(EXAMPLES_PACKAGE_LIB_A_SRCS:%=o/$(MODE)/%.zip.o)
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# 1. Guarantees each header builds, i.e. includes symbols it needs.
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# 2. Guarantees transitive closure of packages is directed acyclic.
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EXAMPLES_PACKAGE_LIB_A_CHECKS = \
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$(EXAMPLES_PACKAGE_LIB_A).pkg \
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$(EXAMPLES_PACKAGE_LIB_A_HDRS:%=o/$(MODE)/%.ok)
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# Lists packages whose symbols are or may be directly referenced here.
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# Note that linking stubs is always a good idea due to synthetic code.
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EXAMPLES_PACKAGE_LIB_A_DIRECTDEPS = \
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LIBC_STDIO \
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LIBC_STUBS
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# Evaluates variable as set of transitive package dependencies.
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EXAMPLES_PACKAGE_LIB_A_DEPS := \
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$(call uniq,$(foreach x,$(EXAMPLES_PACKAGE_LIB_A_DIRECTDEPS),$($(x))))
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# Concatenates object files into single file with symbol index.
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# Please don't use fancy make features for mutating archives it's slow.
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$(EXAMPLES_PACKAGE_LIB_A): \
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examples/package/lib/ \
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$(EXAMPLES_PACKAGE_LIB_A).pkg \
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$(EXAMPLES_PACKAGE_LIB_A_OBJS)
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# Asks packager to index symbols and validate their relationships.
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# It's the real secret sauce for having a huge Makefile w/o chaos.
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# @see tool/build/package.c
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# @see build/rules.mk
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$(EXAMPLES_PACKAGE_LIB_A).pkg: \
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$(EXAMPLES_PACKAGE_LIB_A_OBJS) \
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$(foreach x,$(EXAMPLES_PACKAGE_LIB_A_DIRECTDEPS),$($(x)_A).pkg)
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# Invalidates objects in package when makefile is edited.
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$(EXAMPLES_PACKAGE_LIB_A_OBJS): examples/package/lib/build.mk
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EXAMPLES_PACKAGE_LIB_LIBS = $(foreach x,$(EXAMPLES_PACKAGE_LIB_ARTIFACTS),$($(x)))
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EXAMPLES_PACKAGE_LIB_SRCS = $(foreach x,$(EXAMPLES_PACKAGE_LIB_ARTIFACTS),$($(x)_SRCS))
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EXAMPLES_PACKAGE_LIB_HDRS = $(foreach x,$(EXAMPLES_PACKAGE_LIB_ARTIFACTS),$($(x)_HDRS))
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EXAMPLES_PACKAGE_LIB_BINS = $(foreach x,$(EXAMPLES_PACKAGE_LIB_ARTIFACTS),$($(x)_BINS))
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EXAMPLES_PACKAGE_LIB_CHECKS = $(foreach x,$(EXAMPLES_PACKAGE_LIB_ARTIFACTS),$($(x)_CHECKS))
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EXAMPLES_PACKAGE_LIB_OBJS = $(foreach x,$(EXAMPLES_PACKAGE_LIB_ARTIFACTS),$($(x)_OBJS))
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EXAMPLES_PACKAGE_LIB_TESTS = $(foreach x,$(EXAMPLES_PACKAGE_LIB_ARTIFACTS),$($(x)_TESTS))
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.PHONY: o/$(MODE)/examples/package/lib
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o/$(MODE)/examples/package/lib: $(EXAMPLES_PACKAGE_LIB_CHECKS)
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